Family name Porndanai (Porndanai 
) , across the world, is an extremely rare cognomen. Much more prevalently, Porndanai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Porndanai | United States, Thailand |
Dill, Teppabut, Sarntanayoot, Saenglohaphand, Wanlayapirom, Kajohnpaisansuk, and Vongsachai